A197793 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 5,0,2,0,2,2,0 for x=0,1,2,3,4,5,6

1, 5, 23, 181, 2757, 78811, 3813021, 346650159, 59637265200

Offset

1,2

Comments

Every 0 is next to 0 5's, every 1 is next to 1 0's, every 2 is next to 2 2's, every 3 is next to 3 0's, every 4 is next to 4 2's, every 5 is next to 5 2's, every 6 is next to 6 0's

Links

Table of n, a(n) for n=1..9.

Example

Some solutions with all values from 0 to 6 for 8X8X8
.........0................0................0................0
........0.0..............0.0..............0.0..............0.0
.......2.2.2............1.3.0............0.2.2............0.6.0
......2.4.0.2..........1.2.2.1..........0.2.4.2..........0.0.0.3
.....2.5.2.2.0........0.2.0.2.2........3.2.1.0.2........1.3.0.3.0
....1.2.2.0.0.0......0.0.2.4.4.2......0.0.2.1.2.1......2.2.2.2.2.0
...3.0.3.0.6.0.0....0.6.0.2.2.5.2....0.6.0.2.5.2.0....2.0.1.4.5.2.0
..0.0.0.3.0.0.0.0..0.0.0.3.0.2.2.0..0.0.0.0.2.2.1.1..0.2.2.2.2.2.1.1

Crossrefs

Sequence in context: A198026 A198093 A197792 * A203115 A197628 A296840

Adjacent sequences: A197790 A197791 A197792 * A197794 A197795 A197796

Keyword

nonn

Author

R. H. Hardin Oct 18 2011

Status

approved